So here's a list of Baseball America's top GCL prospects from five years ago. A "*" means the player has been in the majors.
1. Michael Burgess, of, Nationals, in AA with 252/344/451 over six seasons
*2. Jesus Montero, c, Yankees, hit 261/297/389 mostly as a DH with Seattle
*3. Ben Revere, of, Twins, hit 275/317/321 .637 in three years with Twins
*4. Che-Husan Lin, of, Red Sox, nine games with the Sox, has not hit much so far. Slugged 247/323/316 at AAA this year.
5. John Tolisano, 2b, Blue Jays
6. Pedro Baez, 3b, Dodgers
7. Oscar Tejeda, ss, Red Sox
8. Neftali Soto, ss, Reds
9. Luis de la Cruz, c, Cardinals
10. Andrew Lambo, 1b/of, Dodgers, you know about him
*11. Devin Mesoraco, c, Reds, injured, back in AAA
12. Kevin Aherns, 3b/ss, Blue Jays
13. Kyle Lotzkar, rhp, Reds
14. Scott Moviel, rhp, Mets
15. Jairo Heredia, rhp, Yankees
16. D'Marcus Ingram, of, Cardinals
17. Deryk Hooker, rhp, Cardinals
18. Daniel Berlind, rhp, Twins
19. Angel Morales, of, Twins
20. Tyler Kolodny, 3b, Orioles
My take? Don't get excited about GCL rankings.